Based on discussions at the JES scientific meetings, definitions of early and superficial carcinomas, the esophagogastric junction, and subclassification of the depth of superficial carcinoma have been decided. The first edition of the Guidelines for Clinical and Pathologic Studies on Carcinoma of the Esophagus (Guidelines) was published in 1969. In 2001, the 9th Japanese edition was translated into English and published for the first time. The Japanese 10th edition was published in 2007 under the guidance of Professor Hiroyasu Makuuchi, the acting president at the 61st Annual Meeting of the JES. The present second English version -Japanese Classification of Esophageal Cancer- (Japanese Classification)is a translation of the Japanese 10th edition.
For about 40 years, the presentations and discussions on esophageal diseases at the meetings of the JSED and JED have always been based on the common rules stipulated in the Guidelines, including stage, tumor type and histological classification, and other criteria of esophageal carcinoma, and these are now the standard criteria used among Japanese hospitals. On the basis of the Guidelines, the Comprehensive Registry was started in 1988, and in 2004 this was made available on the website of the Japan Esophageal Society (http://www.esophagus.jp/). All descriptions in the Comprehensive Registry were recorded on the basis of the Guidelines. The activities of the JES contribute to the well-being of patients with esophageal diseases.